Weakness and Improvement URGENT reply

[Brenda Wijaya]

Guys, will these weakness and improvement will be marked right and sensible? Because I'm confused whether this can be counted as a limitation and improvement or not.

Extracting solid food samples using mortar and pestle consumed a relatively long and tiring process and time as a limitation

and to give an improvement:

The researcher could use a juicer to extract solid food samples especially for fruits to save time and energy

Thanks in advance!

[jonnaht15]

I think, with any limitation, you should try to answer this question: how does this limitation restrict you from obtaining accurate and precise data?

I don't exactly understand how a relatively long and tiring process creates errors within your data.